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- Number of terms: 20560
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Tektronix provides test and measurement instruments, solutions and services for the computer, semiconductor, military/aerospace, consumer electronics and education industries worldwide.
A video signal occupies a wide spectrum of frequencies, from nearly DC (0 Hz) to 6 MHz. If the output impedance of either the video source, cable, or input impedance of the receiving equipment are not properly matched, a series of problems may arise. Loss of high-frequency detail and colour information as well as image instability, oscillations, snow, ghost images, and component heat-up may result.
Proper connexions and cable types provide correct impedances. See Load Resistance.
Industry:Software
A registered trademark of E.I. duPont de Nemours & Co., designating their polyester film.
Industry:Software
The process of replacing part of one television image with video from anther image; that is chroma keying and insert keying.
Industry:Software
IDTV is different from HDTV in that it uses the standard transmitted (M) NTSC or (B, D, G, H, I) PAL signal.
IDTV improves the display of these signals by doing further processing of the signal before displaying it. IDTV offers picture quality substantially improved over conventional receivers, for signals originated in standard 525-line or 625-line format, by processing that involves the use of field store and/or frame store (memory) techniques at the receiver. One example is the use of field or frame memory to implement de-interlacing at the receiver in order to reduce interline twitter compared to that of an interlaced display. IDTV techniques are implemented entirely at the receiver and involve no change to picture origination equipment and no change to emission standards.
Industry:Software
The window that you see after powering on the system, before you can access files and directories.
Industry:Software
A brand of audio tape recorder using 1/4" wide audio tape extensively used for studio and location separate audio recording.
Industry:Software
A barcode on the edge of motion picture film which allows the film edge numbers to be electronically read and inserted into an edit list.
Very useful for generating a negative cut list from a video off-line EDL.
Industry:Software
A term rarely used to describe ATV schemes incorporating any combination of techniques.
Techniques to Improve NTSC Compatibility
# Monochrome and colour
## Sampling, Aperture, and Interlace Problems
##* Progressive
##* High Line Rate Display
##* Progressive Camera and Prefiltering
##* High Line Rate Camera and Prefiltering
##* Image Enhancement at the Camera
##* Image Enhancement at the Receiver
## Transmission Problems
##* Ghost Elimination
##* Noise Reduction
##* Improved philtre Design and Adjustment
## Changing Equipment Problems
##* Gamma Correction
##* Adaptive Emphasis
##* Rigid Adherence to Standards
# colour Problems
## Improved Decoder Filtering
## Prefiltering
## Full Detail Decoders
## Luminance Detail Derived from Pre-Encoded Chroma.
Industry:Software
